1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
QveST [7]
3 years ago
8

The heat of vaporization of 1–pentanol is 55.5 kJ/mol, and its entropy of vaporization is 148 J/K•mol. What is the approximate b

oilingpoint of 1–pentanol?
Chemistry
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0

Answer:

375 K

Explanation:

Using the experssion shown below as:

\Delta G^0=\Delta H^0_{vap}-T\Delta S^0_{vap}

At vaporization point, the liquid and the gaseous phase is in the equilibrium.

Thus,

\Delta G^0=0

So,

Delta H^0_{vap}=T\Delta S^0_{vap}

Given that:

Delta H^0_{vap}=55.5\ kJ/mol

Also, 1 kJ = 10³ J

So,

Delta H^0_{vap}=55500\ J/mol

\Delta S^0_{vap}=148\ J/K.mol

So, temperature is :

T=\frac{Delta H^0_{vap}}{\Delta S^0_{vap}}

T=\frac{55500}{148}

<u>T= 375 K</u>

You might be interested in
Why do water molecules and the materials dissolved in water move through the plasma membrane slowly ?
garik1379 [7]

Nonpolar and small polar molecules can pass through the cell membrane, so they diffuse across it in response to concentration gradients. Carbon dioxide and oxygen are two molecules that undergo this simple diffusion through the membrane. The simple diffusion of water is known as osmosis.

4 0
3 years ago
Sublimation and boiling both happen at the surface of the substance true or false
dolphi86 [110]
The answer to your question is false, boiling happens below the surface of a substance.
6 0
3 years ago
Read 2 more answers
Does an astronaut have more mass on earth then space? why or why not?
katovenus [111]

Answer:

No

Explanation:

No, his mass remains the same no matter where he is in the universe.

But then again the moon has less gravitational pull, therefore your weight and mass will be smaller in space and on the moon than on earth

I hope this was helpful! ;)

3 0
3 years ago
021.59 cmasdfghjkl;'`1234567890-erghjm
Sergeeva-Olga [200]
Cmasdfghjkl;^2 I think

Lol hoped this helped
6 0
3 years ago
Read 2 more answers
Which of the following is a possible set of quantum numbers for an electron (n,l,m0,ms) ?
Mashutka [201]

Answer is: (3, 2, 0, -1/2).

The principal quantum number (n) is one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state.

For principal quantum number n=3:  

1) azimuthal quantum number (l) can be l = 0...n-1:  

l = 0, 1, 2.  

The azimuthal quantum number determines its orbital angular momentum and describes the shape of the orbital.  

2) magnetic quantum number (ml) can be ml = -l...+l.  

ml = -2, -1, 0, +1, +2.

Magnetic quantum number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.  

3) the spin quantum number (ms), is the spin of the electron.  

ms = +1/2, -1/2.  

(1, 1, 0, +1/2)  is not correct because orbital quantum number cannot be l = 1 for n = 1.

(2, 1, 2, +1/2)  is not correct because magnetic quantum number cannot be ml = 2 for orbital quantum number l = 1.

(3, -2, 1, -1/2) is not correct because orbital quantum number cannot be l = -2 for principal quantum number n = 3.

5 0
3 years ago
Other questions:
  • To create hydrogen and oxygen from water, you would need to perform which type of reaction?
    7·2 answers
  • The temperatures of the two glasses of water shown in the photograph above are 30°C and 0°C. Which of the following is a correct
    14·1 answer
  • what is a diagram showing the forces acting on a coasting bike rider traveling at 25 km/h on a flat roadway
    6·2 answers
  • What is the mole fraction of solute and the molal concentration for an aqueous solution that is 16.0% NaOH by mass?
    6·1 answer
  • Connie just purchased her first new car, and she's actually feeling a little bad about it. She's concerned about how much money
    14·1 answer
  • Why was the Copernicus discovery called the Copernican revolution A. It caused a big fight in the scientific community B. It con
    12·1 answer
  • Predict whether each reaction proceeds predominately by substitution, elimination, or whether the two combined. Write structure
    5·1 answer
  • The partial symbol for a particular ion is 26M2+ What are the number of electrons contained in one ion
    12·1 answer
  • I have a TPO set on me should I disobey it and go see my girl and express my love to her ?
    9·1 answer
  • The element hydrogen contains particles of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!